InputHandlerProxy to inform blink scheduler of input events

content/renderer/input/input_handler_proxy.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/input/input_handler_proxy.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 168 matching lines @@
   SendScrollLatencyUma(event, *latency_info);
 
   TRACE_EVENT_FLOW_STEP0("input",
                          "LatencyInfo.Flow",
                          TRACE_ID_DONT_MANGLE(latency_info->trace_id),
                          "HandleInputEventImpl");
 
   scoped_ptr<cc::SwapPromiseMonitor> latency_info_swap_promise_monitor =
       input_handler_->CreateLatencyInfoSwapPromiseMonitor(latency_info);
   InputHandlerProxy::EventDisposition disposition = HandleInputEvent(event);
+  client_->DidHandleInputEvent();

[Sami, 2014/09/10 16:41:23]

DidReceiveInputEvent

No need for this call here.

[alexclarke, 2014/09/11 16:00:33]

Done.

   return disposition;
 }
 
 InputHandlerProxy::EventDisposition InputHandlerProxy::HandleInputEvent(
     const WebInputEvent& event) {
   DCHECK(input_handler_);
   TRACE_EVENT1("input", "InputHandlerProxy::HandleInputEvent",
                "type", WebInputEventTraits::GetName(event.type));
 
+  client_->DidHandleInputEvent();
   if (FilterInputEventForFlingBoosting(event))
     return DID_HANDLE;
 
   if (event.type == WebInputEvent::MouseWheel) {
     const WebMouseWheelEvent& wheel_event =
         *static_cast<const WebMouseWheelEvent*>(&event);
     if (wheel_event.scrollByPage) {
       // TODO(jamesr): We don't properly handle scroll by page in the compositor
       // thread, so punt it to the main thread. http://crbug.com/236639
       return DID_NOT_HANDLE;
@@ skipping 600 matching lines @@
   // trigger a scroll, e.g., with a trivial time delta between fling updates.
   // Return true in this case to prevent early fling termination.
   if (std::abs(clipped_increment.width) < kScrollEpsilon &&
       std::abs(clipped_increment.height) < kScrollEpsilon)
     return true;
 
   return did_scroll;
 }
 
 }  // namespace content